X-Factor: Tommy Carr's Arm Could Be The Difference For Michigan Against Indiana

Michigan head coach Kyle Whittingham wouldn't say so publicly, but the Wolverines likely have a new quarterback, a little bit of momentum and a massive challenge ahead of it. After true freshman Tommy Carr replaced Bryce Underwood at halftime against Penn State and helped lead the Wolverines to a 21-18 victory, all eyes are now on the youngster heading into a showdown with Indiana.

The Hoosiers are 6-1 after suffering their first loss of the season, a heartbreaking 19-15 defeat against Ohio State. Curt Cignetti's team is legitimate, talented and extremely well-coached. Indiana doesn't have many weaknesses, but there is one area where Michigan might be able to find some success.

Indiana enters the matchup ranked No. 47 nationally in pass defense, making that unit arguably the most vulnerable part of an otherwise outstanding football team. That's where Carr comes in.

Carr provided Michigan with a much-needed spark against Penn State, taking over an offense that had managed just 80 total yards in the first half. His ability to make plays with his legs, extend drives and provide some energy helped completely change the complexion of the game.

But against Indiana, Michigan is going to need more than that.

Carr's mobility will absolutely be important, as will the Wolverines' ability to establish a rushing attack with Jordan Marshall and Savion Hiter. However, if Michigan wants to have a realistic chance of knocking off the Hoosiers, Carr is going to have to make plays as a passer.

That means finding Andrew Marsh, JJ Buchanan and Hogan Hansen consistently.

Marsh has shown flashes of being a legitimate playmaker on the outside, while Buchanan has also proven capable of making things happen when given opportunities. As a tight end, Hansen can become Carr's best friend underneath and provide another target who can help Carr move the chains and keep Indiana's defense honest.

Michigan can't afford to become one-dimensional offensively, especially against a defense as talented and disciplined as Indiana's. If the Hoosiers can load up against the run without fearing Carr's arm, it's going to be a long afternoon for the Wolverines.

The key will be giving Carr manageable throws early, allowing him to build confidence and eventually taking some calculated shots downfield.

Nobody should expect the freshman to be an elite passer in his first start against a championship team like Indiana. He's still inexperienced and will undoubtedly make mistakes. But Michigan doesn't need perfection.

It needs Carr to be decisive, accurate enough and willing to attack Indiana's secondary when opportunities present themselves.

Against a team as complete as Indiana, Michigan has very little margin for error. Carr's legs might keep the Wolverines competitive, but his arm could ultimately determine whether they have a chance to win.